[dovecot] Problems with it

[SvR Marty]

i've install it, used the example config and started

tryed to access my mailbox via Outlook Express

here's the syslog:

Sep 14 22:42:17 p133 imap-login: Logged in. [192.168.1.8]
Sep 15 00:42:17 p133 imap(svrmarty): MAIL environment missing and
autodetection failed (home /home/svrmarty)
Sep 15 00:42:17 p133 imap-master: child 20960 (imap) returned error 98
Sep 14 22:42:19 p133 imap-login: Logged in. [192.168.1.8]
Sep 15 00:42:19 p133 imap(svrmarty): MAIL environment missing and
autodetection failed (home /home/svrmarty)
Sep 15 00:42:19 p133 imap-master: child 20961 (imap) returned error 98

it fails and i don't see any message